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Class 104/172.5 - Chain construction


Subclass of Class 104 - Railways
Definition: Subject matter pertaining to the structure of the traction
No. of patents: 44
Last issue date: 09/18/2007


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NumberTitleIssue Date
7270297Hoist for aircraft cabin construction
A device is provided for hoisting a module for mounting into an overhead space, such as the crown of an aircraft fuselage. The device includes a frame that supports the module, and a lifting device that lifts the first frame to properly place the module. The lifting...
09/18/2007
7258227Drive for conveyor belts
A drive for conveyor belts, of the type that comprises, associated with a travel frame for a conveyor belt with at least one transport chain, transport elements for the belt and a device for recovering any elongation of the belt. The belt elongation recovery device ...
08/21/2007
7252192Side-flexing conveyor module with detachable roller assembly
A link module suitable for use in a conveyor chain intended for travel along an intended direction on a given path. The module includes a first eye and a second eye adjacent the first eye. The eyes define a space therebetween. A roller assembly extends into the spac...
08/07/2007
7228192Method for manufacturing an item
According to a first aspect of the present invention, a method is provided for manufacturing an item. The method comprises the steps of creating a build schedule; creating a first portion of the item for manufacture; causing the first portion of the item to pass in ...
06/05/2007
7051660Carriage assembly for positioning railroad cars
A railroad car positioning apparatus for positioning a railroad car along a railroad track includes a battery-powered and radio-controlled carriage assembly and first and second dog members mounted on the carriage assembly. The apparatus includes a main control unit...
05/30/2006
6659897Chain drive assembly
A chain drive assembly for elevating a load such as a vehicle carriage on a leisure ride. The assembly comprises an endless loop lift chain and a plurality of drive chains. The lift chain has a plurality of chain links comprising a pair of laterally space...
12/09/2003
6637342Conveyor carrier
The present invention is directed to a conveyor assembly and carrier for use with a conveyor wherein the carrier includes a frame having a longitudinal axis, a first pair of load wheels rotatably coupled to the frame, and a first pair of stabilizer wheels...
10/28/2003
6553916Car spotter drive
The present invention provides a low clearance, compact guideway, train positioning system that can be installed in close quarters alongside an existing railroad track. The system is chain driven and features an improved over/under or vertical sprocket ca...
04/29/2003
6450326Enclosed track conveyor chain assembly
An enclosed track conveyor chain assembly and method of construction includes a plurality of guide link assemblies and load link assemblies connected to form a conveyor chain assembly. Each load link assembly includes a pair of side walls and forward and ...
09/17/2002
6435099Powered pushing unit
A powered pushing unit transfers ads no greater than a predetermined magnitude in one direction along the length of a load transfer system. The pushing unit includes a frame and a source of power for moving the pushing unit back and forth along the length...
08/20/2002
6389984Independent dog operating system
A dog carriage for a railway car indexing system for positioning a railway car or a trip of coupled railway cars having railway wheels mounted in and carrying bogey wheel truck frames by engaging and pushing against the bogey wheel truck frames using dogs...
05/21/2002
6367612Retractable pusher dog for power and free conveyors
A retractable pusher dog for an overhead power and free conveyor system is provided. The retractable pusher dog comprises a body portion formed from a rectangular cylinder with a spring and pusher member disposed within the cylinder. When a force greater ...
04/09/2002
6324992Hybrid carrying truck
A hybrid carrying truck is disclosed which has merits of both of a skid carrier and a carrying truck such that it can successively and smoothly transfer between different carrying lines to carry a work whatever the carrying lines are and can secure a remo...
12/04/2001
6267059Low clearance train positioner
A train positioning system for moving railroad cars by engaging bogey frames from one side includes a dog carriage guideway spaced from and parallel to a railroad track, a dog carriage mounted to operate along the guideway, a first dog pivotally attached ...
07/31/2001
6253684Stop mechanism for power and free conveyor system
A stop mechanism for detaching a conveyor trolley from a drive system which normally drives the trolley along a conveyor track. A ramp can be moved into the path of a trolley dog so that the trolley dog moves upwardly along an inclined ramp surface to dis...
07/03/2001
6119601Transport apparatus
A transport apparatus comprises two rails 14, 17 arranged side by side for supporting respective right and left metal wheels 21, 22 of a truck 18 thereon. At least one of the two rails 14, 17 is a truck transport movable rail 17 movable longitudinally the...
09/19/2000
6050196Storage conveyor system for carrier car
A carrier car, for conveyance by a carrier car conveying chain, may be stopped at a desired position at a work station or in a storage section and re-started from the stopped position. A carrier car conveying chain 3 is disposed in an endlessly entrained ...
04/18/2000
5860365Tensioning device for flexible drive member
A tensioning device is connected to a flexible drive member by a right-hand threaded member on the drive member, which projects through an opening in the wall of a trolley. The threaded member is threaded onto a tensioning nut which is biased by a spring ...
01/19/1999
5839371Mono- or twin-rail overhead chain conveyor
A mono- or twin-rail overhead chain conveyor 10', 12' useful for transporting heavy loads such as motor vehicle parts wherein the conveyor has a chain track (14) in the form of an I-shaped profile with running gear 18,20 which can move along said track an...
11/24/1998
5819906Suspension conveyor installation
A suspension conveyor installation having rollers (4) which are selectively linked to a drive chain (16) by driver elements (13). The driver elements (13) are arranged as link plates on the pins (15) of the drive chain (16) so as to be pivotable with resp...
10/13/1998
5647474Structure for preventing position deviation of a truck loaded on a traverser
The present invention provides a traverser, which includes a support member driven by a chain and movable between a carry-in rail and carry-out rail which are disposed parallel with each other. The support member transfers a truck from said carry-in rail ...
07/15/1997
5443014Floor mounted on demand conveyor
An above the floor conveyor is provided for transporting a wheeled vehicle having a plurality of tires across a floor surface with a pair of the vehicle's tires oriented in a guided track. The conveyor includes a drive and idle sprocket which are spaced a...
08/22/1995
5437231Overhead conveyor system having a pusher device with overload and blockage protection
An overhead conveyor system with rolling conveyor carriages guided on rails. The pushers provided for moving the conveyor carriages out of the main track and onto a secondary track are provided with a claw which can be swung in a direction opposite to the...
08/01/1995
5363770Drive unit for transport trolley having plastic center link and drive dog covering for noise reduction
The present invention intends to prevent generation of metallic noise when both longitudinal sides of the chain supporting trolley (22) installed to the center link (19) of the chain collide against the ends of the adjoining side links (20a, 20b, 25) when...
11/15/1994
5226855Tow chain
A tow chain consisting of a series of links which are joined together in a hingeable manner by means of vertical shafts. These links have such a towing pattern that the total sum of horizontal widths of the contact surfaces of two successive links of the ...
07/13/1993
4981081Center link pusher dog for power and free conveyors
A center link pusher dog assembly for power and free conveyors includes a pusher dog member with a mounting base and a pusher dog projection upstanding therefrom. The mounting base has depending lugs and a rear shoulder to engage an abutment formed by a r...
01/01/1991
4964344Side link pusher dog with lubrication passage
A side link pusher dog member includes an elongated side link bar with an integral pusher dog extending upward from an upper surface at a leading end and an integral chain pin extending downward from a lower surface thereof. A trailing end has a slot inte...
10/23/1990
4947758High performance chain for automated transport system
A chain is used in an automated transport system to propel free travelling trolleys riding along a rail toward designated workstations, the chain runs within a U-shaped recess in a track channel on wheels rotatably supported by axles carried by individual...
08/14/1990
4936224Apparatus for conveying motor vehicles into vehicle washing installations
An apparatus for conveying motor vehicles into vehicle washing installations comprises two endless conveying chains (1) running at a distance (A) from each other and parallel to each other. Between the two chains (1) there are arranged bearing shafts (7) ...
06/26/1990
4793261Accumulating pallet chain-dog conveyor and method of conveying pallets
An accumulating pallet chain-dog conveyor has spring-biased roller assemblies attached to the pallet underside for frictionally engaging dogs and spacers which are connected to an endless chain. The roller assemblies include rotatable rollers having a plu...
12/27/1988
4711343Power-and-free conveyor apparatus for handling pallet-supported workpieces
Workpieces are supported on pallets which are advanced in an endless path by continuously driven power-and-free conveyor means adapted to permit each pallet to dwell in a work station when the pallet is stopped in the work station during continued driving...
12/08/1987
4638906Conveyor assembly
A gripper conveyor assembly includes a plurality of grippers. A conveyor chain moves the grippers along a track from a pick up station to a receiving station. The conveyor chain has identical links. Any one link can be removed from the chain while all of ...
01/27/1987
4638740Device for selectively coupling a movable load bearing unit to a link chain conveyor flight
A device for selectively coupling a movable load bearing unit, such as a pallet, to a link chain conveyor flight so that the pallet will selectively be moved with the conveyor flight along a path defined by the conveyor flight. The coupling device include...
01/27/1987
4555014Conveyor chain link structure
A conveyor drive and guide chain having links pivotably coupled to each other by a cylindrical socket and trunnion structure, the cylindrical socket being formed by an end member integral with the links and the trunnion being on the end of an offset membe...
11/26/1985
4297839Chain link and chain assembly including same
The specification discloses a chain link assembly and chain incorporating same especially adapted for enclosed track-type conveyors. The assembly includes elongated link members each with chain pivot pin or fastener receiving openings at either end and sp...
11/03/1981
4297840Chain link and chain assembly including same
The specification discloses a chain link assembly and chain incorporating said assembly, the chain being especially adapted for use in enclosed track-type conveyors. The assembly includes a pair of identical, elongated link members fitted together and mat...
11/03/1981
4242965Carrier conveyor
A carrier conveyor comprising a main runway and a secondary runway each including a chain to which are secured stationary lugs for continuously driving carriers on a runway. A first auxiliary way includes a chain which is arranged to be moved in synchroni...
01/06/1981
4086855Shallow conveyor system
A shallow low cost conveyor system is disclosed for use with tow vehicles. The conveyor chain is provided with a drive which includes two idler sprockets and a drive sprocket all disposed to one side of the tow pin slot so that there is no chain in the ad...
05/02/1978
4073237Power and free conveyor with pusher disengaging means operable on curved sections of conveyor track
A power and free conveyor includes a number of upwardly and downwardly pivotable pushers attached at a specified spacing to a drive chain on a power line, dogs mounted on a number of carriers on a free line and engageable with the pushers, and pusher rais...
02/14/1978
4073238Power and free conveyor with engaging means operable on vertically curved sections of track
A conveyor system comprising a conveyor track, a conveyor movable along said track, a free track and a plurality of carriers movable along the free track. The conveyor has longitudinally spaced pusher and holdback dogs mounted thereon. Each carrier compri...
02/14/1978
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